The Forecasting of the Development of Suffosion Processes in Urban on the Basis of the Geoelectric Modeling by the Data of the Phasometric System of the Geodynamic Control

Nikolay V Dorofeev,Anastasia V Grecheneva,Maxim D Bakni,Oleg R Kuzichkin

doi:10.14419/ijet.v7i4.7.20561

Nikolay V Dorofeev, Anastasia V Grecheneva + Show 2 more

Open Access

https://doi.org/10.14419/ijet.v7i4.7.20561

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Abstract

In this article, techniques and algorithms of the control and forecasting of the karst risk of the territory are considered. The formation of forecast assessments of the development of suffosion processes is carried out on the basis of the computer modeling with the correction of model data on the flexible schedule by results of the monitoring. To reduce the costs of the monitoring work, the resistive control method is proposed to use. This method is based on the phasometric principle of the control of the development of suffosion processes. In the article causes and stages of the development of suffosion processes are gives, features of the development and the control of suffusion processes are described for urban territories. The modeling of suffosion processes is carried out on the basis of the geoelectrical model of the spherical cavity of the covered thickness of soil sediments. The description of the experimental setup is given for the modeling of the suffosion processes and for the control of their formation by the phase control method. The estimation of the adequacy of results is obtained.The approbation of the proposed algorithm was carried out at the site of the alleged development of man-made suffusion processes. The identification and localization of the suffosion processes took place on the basis of the risk map and the phaseometric control method. The correction of the model was carried out by the data of the georadar survey of the investigated area. The proposed algorithm allows minimizing the costs of monitoring activities and increases the accuracy of forecast estimates during the modeling the geological environment on simple models.

Highlights

The negative dynamics of the number of emergency situations is observed, that occur during the operation of technical objects in conditions of the activation of suffosion processes
Engineering objects are at risk of the partial or of the complete destruction when these objects are located in the zone of the passage of suffosion processes [1, 2]
The purpose of this work is the develop of the technique and of algorithms of the control and of the forecasting of the karst risk of the territory in urban conditions, which are based on the phaseometric method of the geoelectrical control and which allowed to correct the time and the area of the execute of additional works for minimize the risk of emergency situations on basic of the computer modeling of the geological section taking into account the observation data

Summary

Introduction

The negative dynamics of the number of emergency situations is observed, that occur during the operation of technical objects in conditions of the activation of suffosion processes It is associated with an increasing technogenic burden on the geological environment. Normative documents regulate the regular execution of engineering-survey works during the construction and operation of buildings and facilities This works include karstological monitoring with the aim of the obtain short-term (from several months to an year) and operational (from several hours to days) forecasts of the estimate of karst risk [8]. In practice, for all buildings the constant carrying out of such works brings great costs and is often ignored In this regard, the more flexible instrument is needed for the regular control and for the identification of dangerous pre-crisis situations, including the research and the development of more sensitive methods and algorithms for the geodynamic control. The purpose of this work is the develop of the technique and of algorithms of the control and of the forecasting of the karst risk of the territory in urban conditions, which are based on the phaseometric method of the geoelectrical control and which allowed to correct the time and the area of the execute of additional works for minimize the risk of emergency situations on basic of the computer modeling of the geological section taking into account the observation data

Karst Suffusion Processes and the Estimate of Geotechnical Risk

The Geotechnical Monitoring of the Development of Suffosion Processes

Findings

The Approbation and Experimental Results